./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:55:11,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:55:11,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:55:11,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:55:11,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:55:11,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:55:11,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:55:11,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:55:11,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:55:11,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:55:11,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:55:11,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:55:11,952 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:55:11,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:55:11,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:55:11,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:55:11,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:55:11,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:55:11,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:55:11,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:55:11,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:55:11,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:55:11,960 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:55:11,962 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:55:11,962 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:55:11,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:55:11,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:11,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:55:11,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:55:11,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:55:11,968 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:55:11,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:55:11,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:55:11,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2023-11-19 02:55:12,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:55:12,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:55:12,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:55:12,490 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:55:12,491 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:55:12,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 02:55:16,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:55:16,619 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:55:16,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 02:55:16,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data/90df236a3/254afe33ac674a368b0f8bba3a8e6a5a/FLAG8788ccea6 [2023-11-19 02:55:16,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data/90df236a3/254afe33ac674a368b0f8bba3a8e6a5a [2023-11-19 02:55:16,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:55:16,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:55:16,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:16,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:55:16,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:55:16,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:16" (1/1) ... [2023-11-19 02:55:16,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600f3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:16, skipping insertion in model container [2023-11-19 02:55:16,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:16" (1/1) ... [2023-11-19 02:55:16,711 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:55:17,000 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-19 02:55:17,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:17,028 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:55:17,085 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-19 02:55:17,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:17,115 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:55:17,120 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:55:17,130 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:55:17,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17 WrapperNode [2023-11-19 02:55:17,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:17,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:17,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:55:17,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:55:17,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,200 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2023-11-19 02:55:17,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:17,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:55:17,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:55:17,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:55:17,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:55:17,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:55:17,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:55:17,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:55:17,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:17" (1/1) ... [2023-11-19 02:55:17,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:17,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:55:17,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:55:17,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:55:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:55:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 02:55:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 02:55:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 02:55:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 02:55:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:55:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:55:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:55:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:55:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:55:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-19 02:55:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-19 02:55:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 02:55:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 02:55:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:55:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:55:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:55:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:55:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:55:17,377 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 02:55:17,534 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:55:17,538 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:55:18,016 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:55:18,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:55:18,148 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 02:55:18,150 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 02:55:18,157 INFO L158 Benchmark]: Toolchain (without parser) took 1498.84ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 107.0MB in the end (delta: 12.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 02:55:18,157 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:55:18,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.24ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 107.8MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:55:18,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.51ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 105.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:55:18,160 INFO L158 Benchmark]: Boogie Preprocessor took 50.19ms. Allocated memory is still 151.0MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:55:18,161 INFO L158 Benchmark]: RCFGBuilder took 901.96ms. Allocated memory is still 151.0MB. Free memory was 104.4MB in the beginning and 107.0MB in the end (delta: -2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 02:55:18,165 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.24ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 107.8MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.51ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 105.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.19ms. Allocated memory is still 151.0MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 901.96ms. Allocated memory is still 151.0MB. Free memory was 104.4MB in the beginning and 107.0MB in the end (delta: -2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 02:55:18,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:55:21,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:55:21,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:55:21,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:55:21,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:55:21,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:55:21,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:55:21,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:55:21,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:55:21,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:55:21,683 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:55:21,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:55:21,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:55:21,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:55:21,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:55:21,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:55:21,689 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:55:21,690 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:55:21,690 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:55:21,692 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:55:21,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:55:21,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:55:21,694 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:55:21,695 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:55:21,695 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:55:21,696 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:55:21,697 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:55:21,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:55:21,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:21,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:55:21,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:55:21,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:55:21,701 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:55:21,702 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:55:21,702 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:55:21,703 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:55:21,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:55:21,703 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2023-11-19 02:55:22,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:55:22,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:55:22,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:55:22,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:55:22,259 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:55:22,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 02:55:26,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:55:26,403 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:55:26,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 02:55:26,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data/07c5f0a56/1f31d4b8c2624afc9a0ba25b9643680f/FLAG90bb95e8d [2023-11-19 02:55:26,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/data/07c5f0a56/1f31d4b8c2624afc9a0ba25b9643680f [2023-11-19 02:55:26,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:55:26,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:55:26,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:26,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:55:26,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:55:26,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e7e672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26, skipping insertion in model container [2023-11-19 02:55:26,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:55:26,690 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-19 02:55:26,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:26,740 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 02:55:26,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:55:26,795 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-19 02:55:26,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:26,820 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:55:26,856 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-19 02:55:26,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:26,885 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:55:26,885 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:55:26,895 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:55:26,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26 WrapperNode [2023-11-19 02:55:26,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:26,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:26,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:55:26,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:55:26,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,987 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-11-19 02:55:26,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:26,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:55:26,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:55:26,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:55:27,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:55:27,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:55:27,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:55:27,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:55:27,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:27,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:27,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:55:27,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:55:27,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:55:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:55:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:55:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:55:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-19 02:55:27,197 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-19 02:55:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 02:55:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 02:55:27,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 02:55:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 02:55:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 02:55:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:55:27,201 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:55:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 02:55:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 02:55:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:55:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:55:27,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:55:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:55:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 02:55:27,205 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 02:55:27,447 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:55:27,450 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:55:27,873 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:55:28,077 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:55:28,077 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 02:55:28,080 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 02:55:28,090 INFO L158 Benchmark]: Toolchain (without parser) took 1656.14ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 55.8MB in the end (delta: 20.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 02:55:28,091 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 73.4MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:55:28,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.60ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 62.5MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:55:28,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.85ms. Allocated memory is still 100.7MB. Free memory was 62.3MB in the beginning and 60.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:55:28,095 INFO L158 Benchmark]: Boogie Preprocessor took 92.32ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 58.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:55:28,096 INFO L158 Benchmark]: RCFGBuilder took 1005.66ms. Allocated memory is still 100.7MB. Free memory was 58.9MB in the beginning and 55.8MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:55:28,100 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 73.4MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.60ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 62.5MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.85ms. Allocated memory is still 100.7MB. Free memory was 62.3MB in the beginning and 60.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 92.32ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 58.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1005.66ms. Allocated memory is still 100.7MB. Free memory was 58.9MB in the beginning and 55.8MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 02:55:28,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e8f66-74b9-474a-96bd-ebe401babfa2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?